Abstract: In this paper we evaluate two lossy compression methods, JPEG and SPIHT, using a metric computation system which evaluates the distortion effects of lossy compression as it affects the task of target segmentation with morphological filtering. Using Forward Looking Infrared Radar images to develop the approach, our goal is to contrast the results of the identical tasks with and without compression using traditional metrics, local/target area traditional metrics, and binary metrics applied to the component representing the selected target mask. Thus, our metrics are specifically targeted to measure the degree of invariance of the processing to the presence of an initial compression- decompression step. The two segmentation methods used are the fuzzy c-means and the median cut.!19
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